Greece · Santorini
Santorini
Sea
—
Air
—
UV
—
More like this
Climate · monthly averages
Sea temperature by month
30-year averages (1996–2025). Min/Max are typical daily lows and highs, not record extremes.
54°F
57°F
61°F
64°F
68°F
72°F
75°F
79°F
82°F
86°F
January
62.1°F(60°F–64°F)
February
61.2°F(59°F–63°F)
March
61.1°F(59°F–62°F)
April
62.2°F(61°F–64°F)
May
66.4°F(65°F–68°F)
June
72.2°F(71°F–74°F)
July
75.5°F(73°F–77°F)
August
77.2°F(75°F–79°F)
September
75.7°F(74°F–78°F)
October
72.1°F(71°F–75°F)
November
68.0°F(65°F–70°F)
December
64.4°F(63°F–66°F)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MinMin °F | 6059.9 | 5959.4 | 5959.4 | 6160.5 | 6565.0 | 7170.7 | 7373.1 | 7574.9 | 7474.1 | 7170.5 | 6564.9 | 6362.7 |
| AvgAvg °F | 6262.1 | 6161.2 | 6161.1 | 6262.2 | 6666.4 | 7272.2 | 7575.5 | 7777.2 | 7675.7 | 7272.1 | 6868.0 | 6464.4 |
| MaxMax °F | 6464.0 | 6362.6 | 6262.3 | 6464.0 | 6867.9 | 7474.1 | 7777.1 | 7979.0 | 7877.7 | 7574.6 | 7070.2 | 6666.4 |
Warmest in August (77.2°F). Coldest in March (61.1°F). Comfortable for swimming from May to November.
About Santorini
Santorini is the crescent rim of a flooded caldera in the southern Cyclades, gouged by the Minoan eruption around 1600 BC; the cliffside towns of Fira and Oia perch some 300 metres above the lagoon. Near Akrotiri on the southwest tip, Red Beach (Kokkini Paralia) tucks beneath rust-coloured volcanic cliffs, while Perissa stretches a long black-sand strand along the eastern coast below Mesa Vouno. Sea temperatures hold between 23 and 25 °C from July through September, with Thira (JTR) airport about 15 minutes by road.